With another baby on the way, it was time to buy more breast milk storage bags. We used mostly Lansinoh bags last time, but Ann didn’t like how flimsy they felt, so we looked at more brands this time.

The problem? There’s surprisingly little information out there about breast milk bag materials. (And as for sturdiness, reviews are contradictory, with lots of fans and detractors for each major brand.) The easily-available information is as follows:

All breast milk storage bags are BPA-free, but so what? They have to be BPA-free by law (BPA is banned in baby food containers under US law).

Most brands don’t say much about phthalates (softening chemicals in plastic which are toxic).